package com.atguigu.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {
    private Set<Integer> set =new HashSet<>();

    //初始化的方法 自定义注解
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] vals =constraintAnnotation.vals();
        for(int val : vals){
            set.add(val);
        }
    }

    //下面的value是需要校验的值
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext constraintValidatorContext) {
        return set.contains(value);
    }
}
